<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        let cartGoods = [
            {
                goodsname: '小米10',
                price: 5000,
                isChecked: false,//代表是否选中了
            },
            {
                goodsname: '苹果10',
                price: 3000,
                isChecked: true,//代表是否选中了
            }
        ]

       var tag = cartGoods.every(function(item){
           return item.isChecked;
       })
       console.log(tag);
    </script>
</body>

</html>